Rowe and Backeberg (this volume) compares the morphology of cm scale structures formed by fluidization with similar looking structures of the Fold Zone (tens of m scale) for which Blignault and Theron (2010) proposed a model of folding essentially by buckling. The Blignault and Theron model is an integration of structure, glaciological aspects and lithofacies associations as observed over the full outcrop area of ca 300 km.

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Some of the comments made by Rowe and Backeberg require clarification.

They are of the opinion that folding by buckling results in “an essentially unlimited long axis”. However, the extent of fold axes...

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